<template>
  <div class="app-container calendar-list-container">

    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input clearable class="filter-item" style="width: 200px;" placeholder="请输入用户名称" v-model="listQuery.username">
      </el-input>
      <el-button class="filter-item" type="primary" icon="el-icon-search" @click="handleFilter">查找</el-button>
      <el-button class="filter-item" type="primary" @click="handleCreate" icon="el-icon-edit">添加</el-button>
      <el-button class="filter-item" type="primary" :loading="downloadLoading" icon="el-icon-download" @click="handleDownload">导出</el-button>
    </div>

    <!-- 查询结果 -->
    <el-table size="small" :data="list" v-loading="listLoading" element-loading-text="正在查询中。。。" border fit highlight-current-row>
      <el-table-column align="center" label="用户ID" prop="id" sortable>
      </el-table-column>

      <el-table-column align="center" label="用户名称" prop="username">
      </el-table-column>

      <el-table-column align="center" label="用户头像" prop="avatar">
        <template slot-scope="scope">
          <img :src="scope.row.avatar" width="40" v-if="scope.row.avatar" />
        </template>
      </el-table-column>

      <el-table-column align="center" label="操作" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button type="primary" size="mini" @click="handleUpdate(scope.row)">编辑</el-button>
          <el-button type="success" size="mini" @click="handlerole(scope.$index,scope.row)">角色</el-button>
          <el-button type="danger" size="mini" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <div class="pagination-container">
      <el-pagination background @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="listQuery.page" :page-sizes="[10,20,30,50]" :page-size="listQuery.limit" layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </div>

    <!-- 添加或修改对话框 -->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form :rules="rules" ref="dataForm" :model="dataForm" status-icon label-position="left" label-width="100px" style='width: 400px; margin-left:50px;'>
        <el-form-item label="用户名称" prop="username">
          <el-input v-model="dataForm.username"></el-input>
        </el-form-item>
        <el-form-item label="用户密码" prop="password">
          <el-input type="password" v-model="dataForm.password" minlength="6" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="确认密码" prop="checkPassword">
          <el-input type="password" v-model="dataForm.checkPassword" minlength="6" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="用户头像" prop="avatar">
          <el-upload class="avatar-uploader" :headers="headers" :action="uploadPath" list-type="picture-card" :show-file-list="false" accept=".jpg,.jpeg,.png,.gif" :on-success="uploadAvatar">
            <img v-if="dataForm.avatar" :src="dataForm.avatar" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
          </el-upload>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button v-if="dialogStatus=='create'" type="primary" @click="createData">确定</el-button>
        <el-button v-else type="primary" @click="updateData">确定</el-button>
      </div>
    </el-dialog>
    <!--弹出窗口：修改用户角色-->
    <el-dialog title="修改用户的角色" :visible.sync="editRolesDialogVisible" width="30%">
      <div>
        <el-checkbox :indeterminate="isIndeterminate" v-model="checkAll" @change="handleCheckAllChange">全选</el-checkbox>
        <div style="margin: 15px 0"></div>
        <el-checkbox-group v-model="updateUserRolesData.rids">
          <el-checkbox class="role-checkbox" v-for="role in roleOptions" :label="role.rid" :key="role.rid">
            {{role.rname}}
          </el-checkbox>
        </el-checkbox-group>
      </div>
      <div slot="footer" class="dialog-footer">
        <el-button @click="editRolesDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="checkUpdateUserRolesData">确定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #20a0ff;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 120px;
  height: 120px;
  line-height: 120px;
  text-align: center;
}
.avatar {
  width: 120px;
  height: 120px;
  display: block;
}
</style>

<script>
import { listAdmin, listTotalAdmin, createAdmin, updateAdmin, deleteAdmin } from '@/api/admin'
import { getAllRole, updateUserRoles, getUsersRole } from '@/api/role'
import { uploadPath } from '@/api/storage'
import { root } from '@/utils/constants'
import { getToken } from '@/utils/auth'

export default {
  name: 'Admin',
  computed: {
    headers() {
      return {
        'X-Token': getToken()
      }
    }
  },
  data() {
    var validatePass = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请输入密码'))
      } else {
        if (value.length < 6) {
          callback(new Error('密码长度不能小于六位'))
        }
        if (this.dataForm.checkPassword !== '') {
          this.$refs.dataForm.validateField('checkPassword')
        }
        callback()
      }
    }
    var validatePass2 = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请再次输入密码'))
      } else if (value !== this.dataForm.password) {
        callback(new Error('两次输入密码不一致!'))
      } else {
        callback()
      }
    }

    // var validateUsername = (rule, value, callback) => {
    //   if (value === '') {
    //     callback(new Error('用户名不能为空'))
    //   } else {
    //     if (value.indexOf(' ') === -1) {
    //       console.log(value)
    //     } else {
    //       // callback(new Error('用户名中不能含有空格'))
    //     }
    //   }
    // }
    return {
      deleteHiden: [false, true],
      uploadPath,
      list: null,
      total: null,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        username: undefined,
        sort: '+id'
      },
      dataForm: {
        id: undefined,
        username: undefined,
        password: undefined,
        checkPassword: undefined,
        avatar: undefined
      },
      roleMap: new Map(),
      dialogFormVisible: false,
      dialogStatus: '',
      textMap: {
        update: '编辑',
        create: '创建'
      },
      checkAll: false,
      editRolesDialogVisible: false,
      isIndeterminate: true,
      roleOptions: [],
      // 更新用户的角色的数据
      updateUserRolesData: {
        idx: undefined,
        uid: undefined,
        rids: []
      },
      updateUserRolesDatas: {
        user_id: undefined,
        role_id: []
      },
      rules: {
        username: [
          { required: true, message: '用户名称不能为空', trigger: 'blur' }
          // { validator: validateUsername, trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { validator: validatePass, trigger: 'blur' }
        ],
        checkPassword: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { validator: validatePass2, trigger: 'blur' }
        ]
      },
      downloadLoading: false
    }
  },
  created() {
    this.initData()
    this.getList()
  },
  methods: {
    initData() {
      // 所有角色选项
      getAllRole().then(response => {
        if (!response.data.data.items) {
          return
        }
        response.data.data.items.forEach(obj => {
          if (obj.rval !== root.rval) {
            // 排除管理员
            this.roleOptions.push(obj)
            this.roleMap.set(obj.rid, obj.rname)
          }
        })
      })
    },
    getList() {
      this.listLoading = true
      listAdmin(this.listQuery)
        .then(response => {
          this.list = response.data.data.items
          this.total = response.data.data.total
          this.listLoading = false
        })
        .catch(() => {
          this.list = []
          this.total = 0
          this.listLoading = false
        })
    },
    checkUpdateUserRolesData() {
      const noRolesSelected =
        this.updateUserRolesData && this.updateUserRolesData.rids && this.updateUserRolesData.rids.length === 0
      if (noRolesSelected) {
        this.$confirm('当前没有选中任何角色，会清除该用户已有的角色, 是否继续?', '提示', confirm)
          .then(() => {
            this.invokeUpdateUserRolesApi()
          })
          .catch(() => {
            this.$message('已取消编辑用户角色')
          })
      } else {
        this.invokeUpdateUserRolesApi()
      }
    },
    invokeUpdateUserRolesApi() {
      this.updateUserRolesDatas.user_id = this.updateUserRolesData.uid
      this.updateUserRolesDatas.role_id = this.updateUserRolesData.rids
      updateUserRoles(this.updateUserRolesDatas).then(res => {
        // const newRoles = this.updateUserRolesData.rids.map(rid => {
        //   const rname = this.roleMap.get(rid)
        //   if (rname) return { rid, rname }
        // })
        // this.tableData[this.updateUserRolesData.idx].roleList = newRoles
        this.editRolesDialogVisible = false
        this.$message.success('更新成功')
      })
    },
    // 全选
    handleCheckAllChange(val) {
      const allRids = this.roleOptions.map(role => role.rid)
      this.updateUserRolesData.rids = val ? allRids : []
      this.isIndeterminate = false
    },
    // 更新用户的角色
    handlerole(idx, row) {
      // 显示用户的角色
      getUsersRole({ id: row.id }).then(res => {
        this.updateUserRolesData = {
          idx: idx,
          uid: row.id,
          rids: res.data.data.rows.map(role => role.rid)
        }
        this.editRolesDialogVisible = true
        res.data.data.rows.forEach(obj => {
          if (obj.rval === root.rval) {
            this.$message.info('管理员不能修改角色！')
            this.editRolesDialogVisible = false
          }
        })
      })
    },

    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    handleSizeChange(val) {
      this.listQuery.limit = val
      this.getList()
    },
    handleCurrentChange(val) {
      this.listQuery.page = val
      this.getList()
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        username: undefined,
        password: undefined,
        checkPassword: undefined,
        avatar: undefined
      }
    },
    uploadAvatar: function(response) {
      this.dataForm.avatar = response.data.url
    },
    handleCreate() {
      this.resetForm()
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    createData() {
      this.$refs['dataForm'].validate(valid => {
        if (valid) {
          createAdmin(this.dataForm).then(response => {
            this.list.unshift(response.data.data)
            this.dialogFormVisible = false
            this.$notify({
              title: '成功',
              message: '创建成功',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleUpdate(row) {
      this.dataForm = Object.assign({}, row)
      this.dialogStatus = 'update'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    updateData() {
      this.$refs['dataForm'].validate(valid => {
        if (valid) {
          updateAdmin(this.dataForm).then(() => {
            for (const v of this.list) {
              if (v.id === this.dataForm.id) {
                const index = this.list.indexOf(v)
                this.list.splice(index, 1, this.dataForm)
                break
              }
            }
            this.dialogFormVisible = false
            this.$notify({
              title: '成功',
              message: '更新成功',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleDelete(row) {
      deleteAdmin(row).then(response => {
        this.$notify({
          title: '成功',
          message: '删除成功',
          type: 'success',
          duration: 2000
        })
        const index = this.list.indexOf(row)
        this.list.splice(index, 1)
      })
    },
    handleDownload() {
      import('@/vendor/Export2Excel').then(excel => {
        listTotalAdmin(this.listQuery).then(response => {
          const tHeader = ['用户ID', '用户名称', '用户头像']
          const filterVal = ['id', 'username', 'avatar']
          const list = response.data.data.items
          excel.export_json_to_excel2(tHeader, list, filterVal, '用户信息')
          this.downloadLoading = false
        })
      })
    }
  }
}
</script>
